The 1915 WW1 RMS Lusitania Sinking Commemorative Medal is a historic piece of memorabilia issued during World War I. This medal commemorates the sinking of the RMS Lusitania by a German U-boat in 1915, which had a significant impact on the naval warfare of the era. The medal, from the era of 1914-1945, represents the bravery and sacrifices of those involved in the conflict, making it a valuable collectable for enthusiasts of militaria and naval history.